Scores of 100 (3.25" or better group size) are not that rare at our Bullseye competition, especially in Timed Fire. Last week a shooter had a 100 with 7 Xs. That's one hand unsupported at 25 yards, 2x5 shots in 20 seconds. I posted the target below last week in Rapid Fire (2x5 shots in 10 seconds) with an iron-sighted Model 17-5: